1198620 has 36 divisors (see below), whose sum is σ = 3636360. Its totient is φ = 319584.

The previous prime is 1198609. The next prime is 1198621. The reversal of 1198620 is 268911.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3150 + ... + 3509.

It is an arithmetic number, because the mean of its divisors is an integer number (101010).

2^1198620 is an apocalyptic number.

1198620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198620 is an abundant number, since it is smaller than the sum of its proper divisors (2437740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1198620 is a wasteful number, since it uses less digits than its factorization.

1198620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674 (or 6669 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1198620 is about 1094.8150528742. The cubic root of 1198620 is about 106.2251060479.

The spelling of 1198620 in words is "one million, one hundred ninety-eight thousand, six hundred twenty".